Chain for conveyers.



D. FRASER.

CHAIN FOR CONVBYERS.

APPLICATION 11.21) Ammo, 1913.

1,1 1 9,262. Patented Dec. 1, 1914.

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DONALD FRASER, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO CHAIN BELT COMPANY, OF MILWAUKEE, WISCONSIN, A CORPORATION OF .WISCONSIN.

CHAIN FOR CONVEYERS.

Application filed August 20, 1913.

To all whom it may concern:

Be it known that I, DONALD FRASER, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Chains for Conveyers, of which the following is a specification.

My invention relates to chains such as are adapted to constitute or to form elements of a conveyer,the chains being adapted to engage with drivingsprocket wheels.

In the accompanying drawings-Figure 1 is a perspective View, partly insection on the line 11 of Fig. 2, of a pair of connected chain links embodying my invention. Fig. 2 is a side elevation of the links, contiguous to their joint or connection.

The chains shown in the drawings are formed of duplicate links each comprising a pair of side bars 2, 2, and a hollow end bar 3, the latter being perforated to receive the connecting pintle 4:. The free ends of the side bars are perforated to receive the pintle and are adapted to overlap the tubular end bar of the link which is to be connected thereto. Each pintle is preferably provided with an angular head 5 that lies in a seat 6 provided therefor in the perforated end of one of the side bars, the pintle being in this manner locked to the free end of the link through whose side bars it passes, so that it turns therewith, but is free to oscillate in the tubular end bar 3 of the other link. The end of the pintle opposite the head is preferably flattened, as indicated at 7, and lies in a correspondingly shaped aperture in the side bar that is opposite the one having the seat 6 for the pintle head. The length of the pintle is preferably such that when properly seated its end 7 lies about flush with the face of the side bar with which it engages. The pintle is perforated at 8 to receive the locking pin 9. In the outer face of the side bar with which the perforated end of the pintle engages, there is formed a cross groove 10, in which lies the key 9 when passed through the aperture 8 in the pintle to lock the latter in place. Commu- Specification of Letters Patent.

PatontedDec. 1, 1914.

Serial No. 785,740.

nicating with the groove 10 is a recess 11, at an angle thereto and adapted to serve as a seat for the bent end, 12, of the locking key. It will be seen, by reference to Fig. 2, that the portion of the wall of the groove 10 which is opposite the seat 11, is adapted to serve as an abutment against which the end of the pintle may be forced when strightened out, as indicated in dotted lines. This is of advantage since it constitutes a sort of gage for determining the proper position to which the key should be bent when being straightened for removal from the pintle. Since the key fits the opening 8 in the pintle quite closely and is itself a piece of metal of such size that considerable force is required to bend it, it is found to be somewhat difficult to straighten it so that it may be easily removed unless some stop or gage for determining the extent to which it shall be bent is provided. In the construction herein shown this is formed by the shoulder of the groove 10 lying opposite the seat 11.

lVhat I claim is 1. In a chain having links with side bars and hollow end bars, the free ends of the side bars overlapping the end bars and being united thereto by connecting pintles, the combination of a connecting pintle perforated at one end to receive a locking key, a key the end of which is bendable, and a side bar of the chain through which the perforated end of the pintle passes formed in its outer face with a seat in which the end of the key when bent rests, and an abutment serving as a gage to determine the extent to which the key shall be bent when straightened to permit removal.

2. In a chain having links with side bars and hollow end bars, the free ends of the side bars overlapping the end bars and being united thereto by connecting pintles, the combination of a connecting pintle perforated at one end to receive a locking key, a side bar of the chain through which the perforated end of the pintle passes, having formed in its outer face a cross groove adapted to register with the perforation in the pintle when the latter is seated and a its end being bendable and adapted to ocrecess communicating With the said groove cupy the said recess when bent.

on one side, the Wall of the groove oppo- DONALD FRASER.

site the said recess serving as an abutment Witnesses: 5 for the key, and a key adapted to be passed D. O. MENIFEE,

through the pintle and he in the said groove, WALTER GAUDER, Jr.

copies of this patent may-be obtezlned for five cents each, by addressing the Commissioner of Eateuts,

Washington, D. '13." 

